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I got a litle crazy with the dye one night on my loop and it looked exactly like that. I ended up having to flush it for a couple hours with tap water and then twice for an hour each with fresh distilled to get it to stop doing it.

RED guck on q-tip inserted in the fusion block and a thin coating starting to build up on the instide of the tube. Look at the plastic Tee you can see redish discoloration around the tubes.

The pic below is a few weeks after the build(before i drilled the MB tray for wire management)..notice the tee is clear but the tubes near fusion and CPU are starting to turn yellow. The little 3/8 tubes to convert to half had redish guck in them when I flushed.

I don't think it is dye related. You second pic shows mostly clear liquid and tubes, but an orange tinge growing out from the block areas.

What is this red guck stuff you talk of? That's the culprit and sounds like algae or something. It seems to be coming out from the Fusion NB block (even against the flow when system off)

Wierd, post some picks of this red guck in the fusion when you change cpu and NB block to copper ones please.

Like NaeKuh said, it's most likely being caused by the black dye Swiftech coats the underside of the GTX top with......dye that's very easily removed with a soft toothbrush and a minute or two of scrubbing, so it's not completely out of the range of imagination that the dye is just wearing off with the constant water flowing by it. Doubt just a few weeks is going to give huge amounts of red algae growth, unless you've completely contaminated your system when you set it up and you have it sitting open and your tubing is completely exposed to direct sunlight.

Look at the carnage.

It's way worse than I thought, both the GTX and the fusion block a totally full of red/orange sludge. Somebody tell what this stuff is. All of the fins on the cpu block were full of sludge. Is this a galvanic reaction or is this alge? This is after 8 weeks or so and flushed once.

Can't even clean the fusion block...it doesn't come apart. Looks like I have to order EK blocks for the whole sha-bang. Not impressed with this ASUS liquid cooling block.

That has to be the most serious case I've ever seen in such a short amount of time. Only 8 weeks and there is more corrosion than I thought was possible. I would remove everything and wash it thoroughly and flush it out with distilled water for a while. Your radiator probably looks just like your poor poop pump. I would setup a closed loop in your sink for just constant flushing of your radiator for a while.

This looks like a good time to get a new cpu and motherboard blocks. It's always fun to have a good reason to upgrade.

That has to be the most serious case I've ever seen in such a short amount of time. Only 8 weeks and there is more corrosion than I thought was possible. I would remove everything and wash it thoroughly and flush it out with distilled water for a while. Your radiator probably looks just like your poor poop pump. I would setup a closed loop in your sink for just constant flushing of your radiator for a while.

This looks like a good time to get a new cpu and motherboard blocks. It's always fun to have a good reason to upgrade.

I cleaned the GTX and the pump with rubbing alcohol..the guck cam off. Can't clean the fusion block, can't clean out the rad. System is back together running with distilled water until my ek-blocks arrive...i think I'm going to get a D-tek fusionv2 for the cpu as I don't need any extra flow restriction, I'm going to cool CPU, SB, NB and Mosfets on the one 1/2 tygon loop.

Going to try and flsuh something that clean more powerful than water through the rad...any ideas guys?

Ok, the orange color is a dye you used? If not my guess it's a reaction compound between the aluminium rust that had caused the color, and for the sticky part coming from the blocks, it have to be the alumina. That can't be cleaned property since it's already rotting, the only solution is to change a new one or be professional refabricated. I never RMA a water-block before, but I think it's under warranty. Next time avoide aluminium made blocks, especially the non-painted ones.

While I had it apart lastnight I rebuilt my loop adding a EK RES, DangerDen fillport, and alphacool temp sensor. You can see here the res water is a little yellow, some left over fluid was in rad and ran into the RES after I completed the loop. Once I get my EK parts I'm going to flush again and go with black Fluid XP coolant. That Primochill Prue PC fluid is not doing anything for me.